284 bulletin: museum of comparative zoology. 



the two preceding joints together. Eyes small, but distinct, convex; located 

 at middle of sides of head. Prothorax slightly convex, broadest in front, 

 humeri narrowly rounded; anterior border rounded, sides nearly straight; 

 ventral border angulate, but not armed. Promesonotal suture strongly im- 

 pressed. Mesonotum more than twice as broad as long; the surface feebly 

 convex. Base of epinotum slightly convex, little longer than broad ; in profile, 

 broadly rounding into the declivity; declivity slightly transverse, the surface 

 convex. Petiole from above subglobose, a little longer than broad; in profile 

 about as deep as long; anterior surface flat and margined at sides; antero- 

 ventral tooth flat, triangular. First gastric segment at base a little broader 

 than the petiole; broader, but shorter than the second segment; the constric- 

 tion between the two strong. Sting short and thick for two thirds the distance 

 from base, then acuminate, the sides of the thickened basal portion at tip with 

 a fine hair. Legs slender; tarsal claws with a strong tooth. 



Shining; occiput, sides of head, and cheeks furrowed, the furrows containing 

 strong, umbulate foveae, sometimes approximate, but not contiguous; middle 

 of front and vertex with seven strong irregular carinae, the inner of which 

 extend to the occipital border and the outer only half the distance; basal 

 portion of clypeus bicarinate, the carinae widely separated, anterior portion 

 densely punjtulate. Mandibles feebly shining and shallowly punctate 

 Antennae sublucid, shallowly punctate. Prothorax with a few shallow 

 punctures on front half of dorsum, elsewhere smooth. Mesothorax with 

 strong carinae, six on the disc longitudinal, four at sides becoming diagonal. 

 Epinotum punctuate at upper part of sides. Metapleurae with five strong, 

 short carinae situated apically. Petiole and first two gastric segments sparsely 

 and shallowly foveolate. Legs sparsely punctate. 



Head, body, and antennal scapes with very sparse, scattered erect hairs. 

 Antennal funiculus pubescent. 



Ferruginous throughout; funicular joints 1-7 a little lighter; joints 8-11 

 white. Pilosity black. 



Ysabel: Fulakora. 



Described from four workers found on the ground in the forest. 



This very striking ant approaches in general form some of the species 

 of Stictoponera but it differs in having very strong thoracic sutures 

 and in not having angulate occipital corners and the gaster is 

 much less deflected at tip. The shining integument, with its curious 

 sculpture and the remarkable coloration of the antennae, ferruginous, 

 with a white club in strong contrast, is quite distinctive. The club 

 is perhaps not more pronounced than in Stictoponera, but is strongly 

 accentuated by the color. 



It is evidently rare for I searched diligently in the same vicinity 

 without finding a nest or more workers. 



